Howlers are New World monkeys found in tropical Central and South America. They are aptly named for their cacophonous cries. When a number of howlers let loose their lungs in concert, often at ...

Normally quite intimidating, howler monkeys are muscular and can be around 2ft (60 centimetres) tall, with tails as long again. They are equipped with big jaws and a fearsome set of teeth and fangs.

Normally quite intimidating, howler monkeys are muscular and can be around 2 feet (60 centimeters) tall, with tails as long again. They are equipped with big jaws and a fearsome set of teeth and ...

My adventure of a lifetime began in 2015 when I was asked to follow the tree-top lives of Costa Rica’s gravity-defying howler monkeys (Alouatta palliata palliata). Image by Justine Allan.

There are other animals too. Like that howler monkey. It uses its tail like an extra arm, helping it move from tree to tree. And it's eating a banana. One of over three thousand types of fruit ...

Normally quite intimidating, howler monkeys are muscular and some can be as tall as 90 centimeters (3 feet), with tails just as long. Some males weigh more than 13.5 kilograms (30 pounds ...

A rare red howler monkey has been born at a wildlife park in Yorkshire. The primate was born on 29 April at Doncaster's Yorkshire Wildlife Park and keepers said it was still too early to tell the ...